# 6.5
rivers = {
    'nile':'egypy',
    'changjiang':'china',
    'mississippi': 'united states'
}
for river,country in rivers.items():
    print(f"The {river.title()} runs through {country.title()}")

print('\nThe following rivers are included in this data set:')
for river in sorted(rivers.keys()):
    print(f"{river.title()}")
print('\nThe following countries are included in this data set:')
for country in sorted(rivers.values()):
    print(f"{country.title()}")